Not me. I vastly prefer the 4K footage over the BMCC (RAW or ProRes). When properly lit and exposed, the extra DR in the BMCC isn't a must-have for us compared to the 4K. Why? The larger S35 sensor is really nice, the global shutter is really nice, and the 4K resolution makes for zero moiré, which, yup, is really nice. The astronomical amount of sheer detail in the 4K is mind blowing (1080 in the 4K is superior to 1080 in the BMCC). Even at ProRes 4K and HD, the 4K camera is our preferred camera of choice over the BMCC these days. We've been using the 4K since December of 2013, so we've had quite a bit of time on it at this point, which includes a lot of chart testing and real-world production.

Of course when 4K RAW arrives, you'll have a bit more latitude to push around in post as well.

[pekin azer]"will the 4K raw be uncompressed? i remember 4K raw not to be 1:1"

12-bit RAW has not been released for the 4K yet. It will however have lossy compression to deal with the large bandwidth requirements. As it is, 10-bit ProRes HQ 4K is 880 Mbps. Most 4K/5K/6K capable cameras that offer RAW are also compressed in one or several manners. A lossless/uncompressed 12-bit 4K RAW file would just be too large under current technology.

Just for the record, the BMCC at 2.5K RAW is always true lossless/uncompressed at a consistent 5 MB per frame but can do it since it's going to SSD. Alternatively, the Pocket Cinema Camera at 1080 RAW is mathematically lossless, but with file compression with file sizes that cut the size by around half depending on the image. In short, both the BMCC and BMPCC have no image compression, but the BMPC 4K will in fact have some, again, not foreign to any 4K/5K/6K RAW camera.